woodward



4 Sheets-Sheet 1.

(N9 Model.)

E. WOODWARD 8u 1V1. BROCK. MACHINE PUR MAKING TACK STRIPS. No. 247,143.`Patented Sept. 13,1881.

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(No Model.) Y 4 Sheets-Sheet 2.

E. WOODWARD 8v M. BROCK.

MACHINE POR MAKING TACK STRIPS. No. 247,143. Patented Sept. 13,1881.

QATNEEfJ-EE i am? w (No'Moael.) 4 sheets-sheet 3.

E. WOODWARD & 1VI. BROCK.

MACHINE FOR I/IAIIIIIGr TACK STRIPS.

No. 247,143. Patented Sept. 13,1881.

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(No Model.) 4 Sheets-Sheet 4:.v

' E. WOODWARD& M. BROCK.

MAGHINE FOR MAKING TACK STRIPS. I No. 247,143. Patented Sept.'13,1881.

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NTTE STATES PATENT OFFICE.

ERAsTUs wooDwARD AND MATTHIAS BROCK, or BosroN, MAsS.

MACHINE FOR MAKING TACK-STRIPS.

SPECIFICATION forming part of Letters Patent No. 247,143, datedSeptember 13, 1881.

Application filed October 29, 1880. (No model.)

' To all whom it may concern Be it known that we, ERAs'rUs WooDwARD andMATTHIAS BROCK. both of Boston, in the county of Suffolk andCommonwealth of Massachusetts, have invented au Improvement in Machinesfor Making Tack-Strips, of which the following is a specitication,

This invention has for its object the following-described improvement inmachines for making tack-strips, reference being had to the accompanyingdrawings, forming a part of this specification, in explaining itsnature, in which- Figure l is a front'elevation of the machine.

Fig. 2 is a side elevation thereof. Fig. 3 is a plan. Fig. el is a view,in plan, of the stripfeeding mechanism, witha portion of the feedwheelsbroken away, to show the construction beneath. Fig. 5 is a detail View,representing a portionA ot' the severing mechanism hereinafterdescribed. Fig. 6 is a detail view, representing the construction of themechanism for transferring the tacks from the feeding-chute to thedriveway, and also aportion ofthe mechanism for preventing thestrip-feeding devices from being actuated it' a tack is not driven.`

Fig. 7 is a vertical section on the line a; w of Fig. 6. Fig. S is avertical section upon the line z z of Fig. 6. Fig. 9 is a horizontalsection upon the line y y otl Fig. 6.

This invention is an improvement upon the machine for making tack-stripsdescribed iu the Letters Patent No. 230,386 granted us, and dated J'ul y20, 1880. It embraces, first, a spiral device for wiping or brushing thetacks from the upper portion of the chute, arranged within the hopperand adapted to keep the tacks from collecting upon or in the chute atthe point where the chute leaves the hopper, and from stopping thepassage ot' the tacks; second, a reciprocating carrier-plate fortransferring the tacks one by. one from the lower end ot' the chute tothe driveway, in combination with devices hereinafter described 5'third, devices for supporting the mechanism for feeding the strip intowhich the tacks are driven, having a vertical movementin relation to thedriveway, whereby the parts ot' the machine are much more easily got atthan it' said stripfeeding mechanism were permanently located iurelation to the driveway; fourth, mechanism for automatically cuttingthe tack-strips into given lengths, each length having a given number oftacks; fifth, devices whereby the tack driving and feeding mechanism isautomatically stopped if the tack becomes lodged in the driveway or isnot properly driven into the strip; sixth, various modifications anddetails of construction, all of which will hereinafter be more fullydescribed.

A is a hopper. It is preferably somewhat concave on its lower innersurface,and au auxilliary chamber, a., may be arranged to open therein,at a', into which tacks may be deposited in bulk, and from which theymay be passed into the hopper from time to time, as required.

A series of buckets or scoops, c2, fastened to arms as, projectingradially from the hub or center a4, which is fastened to the shaft-a5,serve to lift the tacks from the bottom of the hopper and to depositthem upon the inclined platform a6, which slopes from either edgedownwardlyr to the chute a7.

The guides a8, projecting upwardly from the platform, serve to directthe tacks tothe chute. There is also arranged within the hopper a wiperor clearing device, a, which consists in a disk, al, fastened to the endof the main shaft a and revolved thereby, and having formed thereon aspiral kwedge-like device or projection, so shaped that it shallcommence to operate in freeing the chute from tacks which have becomelodged therein at the point nearest the wall ofy the hopper, and fromthat point shall move the tacks that arein the chute and upon itgradually upward untilthe end of the wiper leaves the top of the chute,when the tacks that have been lifted up are allowed to move back untilthe wiper has revolved sufciently to operate again.

The arms a4, carrying the buckets, are revolved by means of the shafta5, the spur-gear cl2, intermediary connecting gearwheels als al", andtheir connecting-shaft am, and the gear als on the main shaft, whichmeshes with the gear d'4.

A hammer, a, attached to an arm, al, pivvoted to the side of thehopper', and operated by a cam-pin, al, on the disk am and spring a,jars or vibrates the platform attached to the chute sufficiently toprevent the tacks from lodging therein. t

The chute a7 extends downwardly, and the lower end is arranged upon aline with the T- shaped opening b in the slid-ing plate B, and

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said plate is reciprocated from the end of the feedway in the chute to aposition opposite theA driveway by means of a carriage, b', which slideshorizontally in ways b2, the link or rod b3, which has a bearing at b4ton the stud b5, projecting from the bracket A2, the bent lever B alsohaving a bearing on the stud b5, and adapted,'in connection with thespring B2, to provide the link with a swinging movement on the stud, andcam-groove b in-the face of the cam-disk 117, which is fastened to themain shaft du.

rEhe sliding plate B, by means of the T- shaped carrier b, transfers thetack from the lower end of the chute to a position opposite the upperend of the driveway, into which, through the passage c, it istransferred by the transferring-plate c, which is fastened to a block,c2, arranged in the ways o3 upon the fratrie A of the machine, and isreciprocated in the vertical part of the T-shaped passage in thetack-carrier plate, and said passage by the lever c4, pivoted at c5, andoperated by the edge cam-groove c6 in the cam-disk c7 upon the mainshaft all. The tack, being transferred to the driveway by thetransferring-plate, drops therein, and is supported by the jaws o8,which are adapted to yield against the pressure of the springs o9.

The drive-rod C drives the tacks from the jaws into the strip. Thedrive-rod is reciprocated by means of the cam-groove cl in the cam-diskou and the connecting-rod cl2, which is provided with the cam-pin cl3,and has suitable bearings in the frame ofthe machine.

The table or plate D supports the tack-strip feeding and severingmechanism, which consists,in part, of the feed-wheels d cl and theirconnecting and operating' mechanism. It is cast upon or attached to thevertical plate D', which' has a dovetailed recess, d2, fitting thedovetail d3 on the outer edge of the bracket d4, fastened to theframe-work of the machine.

The plate D is adapted to be moved verticallyupon thedovetail, whichfurnishes aguide as well as a support for it, by means of the cam-grooved5 in the cam-block d, which is pivoted at 17 to the bracket d4, and isprovided with a handle, d8. A cam-pin, d?, upon the plate D enters thecanrgroove and forms the connection.

The mechanism for preventing the feeding of the tack-strip when a tackis not inserted therein is similar to that described in our said patent,and the lever dlg (which is the equivalent of the lever h3 in our saidpatent) is provided with a slot, d10, and is operated by the arm du,connecting-rod d, arm d'3, and camgroove dl, in the disk c7 upon themain shaft. The arms d Z13 and connecting-rod d constitute substantiallya bell-crank lever. The vertical bar e115, entering the slot d10, makesthe connection between the ends of the arm d and the said lever 19, andalso permits the leverto be moved vertically thereon as the stripfeedingmechanism is being moved vertically.

The mechanism for operating the knife or severing device E consists inthe lever e, at one end of which the knife-stock is secured, and whichis pivoted at c to the standard e2,- the cams e3, on the upper face ofthe cam-disk c4, which has a bearing on the shaft supporting thefeed-wheel d; the cam-pin e5, which projects inwardly from the lever ein a position to be lifted upon the successive cams, and which may beprovided with a friction-wheel; the disk c6, which is adapted to berevolved with the intermediary spur-wheel E between the feed-wheels dd', provided with a notch, 67; the ratchet-wheel e8, fastened to thecam-disk e4; the pawl e9, and the pawl-carrying plate elo, which ispivoted at e to a standard projecting outwardly from the plate or tableD, and has the two pins cl2, between which the pawl passes, and the pincl3, which is adapted to be engaged by the notch e7 on the disk c6. Thepin cl3 is kept in contact with the edge of the disk c6 bythe spring614. The lever or pawl 69 is reciprocated by means ofthe arm 015, whichis attached to the lever c, which corresponds to the lever h4 of thesaid patent.

A bed, E2, is arranged above the grooved bed E3, supportingand guidingthe tack-strip, and has a slit or recess across it, into which the knifecloses, and the tack-strip is severed by the joint operation of thelower edge of the bed and the knife.

It will be observed that the pawl ef has a reciprocating movement foreach tack inserted into the tack-strip, but that it is held off from theratchet-wheel o8 by means of the disk e6 and hinged carrier-plate eluntil the notch el receives the pin cl3, when thepawl engages with theratchet-wheel e8 and moves to the distance between two teeth. Thismovement of the ratchet-wheel causes the disk e4 and the cams c3 thereonto be revolved suihciently to reciprocate the lever carrying the knife.

The mechanism for automatically stopping the tack-feeding andtack-driving devices consists in a rod,f, which is parallel, orsubstantially parallel, with the bar carrying the driverod, and has ablock,f, at its lower end surrounding, or partially surrounding, thedriverod bar, andalatch, f2, at the upper end, which is adapted to shutautomatically behind a catch, f3, on the rod F, connecting theoperating-handle f4 with the clutch-leverf. A spring, f6, serves to drawthe latch and its rod downwardly behind the catch when the rod havingthe catch has been drawn outwardly sufficiently. to engage the clutch f7with the clutch on the driven pulley F. A spring, f8, serves toautomatically retract the rod F when the latch has been moved upwardlysufficiently to clear the catch, thereby disengaging the clutchf Thedrive-rod is fastened to the drive-bar by a friction-block, f,sufficiently to enable it to drive the tacks without slipping therein,but not sufficiently to prevent slipping if any obstaclessuch as a benttackbecome lodged in any part of the driveway or bed, and when thedrive-rod is thus arrested in its descent it slips upwardlyin itsholding- ICO IIO

block and finally comes in contact with the block ff, moving it upward,and causing it to trip the catch, thereby stopping the machine. rlhemechanism for operating the slide B is provided with devices whereby itmay be easily adjusted, so that the chute and the recess b inthecarrying-plate B and the drive-way may accurately register'. Theyconsist in the lower arm, g, of the lever B' and the set-screw g', whichis carried by a bracket, g2, on the lower portion of the operating-armb3, and which bears against the end of the arm g, whereby the distancebetween the arm g and the arm b3 may be increased or diminished, therebyaffording means for varyingthe eX- tent of movement of the sliding plateB outwardly or in the direction of the passage to the driveway, and inthe screw g3, supported by the bracket g4 on the end of the block b',which is adapted to strike against a stop, g5, at theend of the inwardthrow of the plate,there by providing means whereby the limit of inwardmovement of the plate B is obtained.

The mechanism for applying the coveringstrip consists in the bevel-gearh, fastened to the feed-wheel d', the bevel-gear h', having a bearingupon the shaft h2, and the wheel h3, which is adapted to bear upon thebed of the machine in compressing the coveringstrip upon the main stripor that portion ofthe strip carrying the tacks. The shaft h2 issupported by a block movable in the guideway h4 of the standard h5, anda curved cam-groove, h6, in the lever hl, which is pivoted at h8. Bymeans of this lever the roll may be adjusted vertically in relation tothe bed, and, in connection with a thumb-screw, hg, which clamps theroll-supporting block,the amonntot' pressure of the roll upon the bedmay be varied.

The device for applying the paste or cement is similar to that describedin Letters Patent before mentioned.

The machine isfnrther provided with a hammer, M, which is reciprocatedagainsttheframe A by means of the lever m, which supportsit, and whichis pivoted at m, and an edge-cam, m2, on the cam-disk 117. 'lhe vobjectof this hammer is to cause the chute to be vibrated sufciently toprevent the tacks from stopping therein in their descent.

The operation of the machine is as follows: Taeks are deposited in bulkeither in the chamber a, from whence they are fed in sufficient quantityto the hopper A, or are deposited directly in the hopper, and by therevolution of the buckets are scooped from the bottom of the hopper anddeposited upon the inclined table co6, and those that fall pointdownward, with their heads resting upon the platform on either side ofthe chute, commence to descend. The wiper a3 prevents the tacks fromdescending too rapidly and clogging in the chute. The tacks descendingin the chute are taken from the end thereof successively by the slidingcarrier-plate, which is adapted t0 receive but one,

and to carry it to a position oppositeapassage' leading into thedriveway, from whence it is removed by the reciprocating transferrer,that carries it in a direction at right angles to the line of movementof the carrier and deposits it in the driveway, whence it falls to aposition between the jaws o8, where it is held until the descent of thedriver, when itis driven into the tack-strip, which is carried by thereel N, and which, after receiving the first tack, is fed by the contactof the feed-wheel with the driven tack, as described in our said LettersPatent.

The bed for supporting the tack-strip and for guiding it is likethatdescribed in our said Letters Patent. The tack-strip is then fed toa position to receive the covering-strip, which is applied in the samemanner as described in the said Letters Patent, and the tack-strip isthen severed into uniform lengths by the mechanism heretoforedescribed'. The vibration caused by the hammer prevents the tacksfromlodging in the chute. i

In case tacks become lodged in the driveway or are not driven properlyinto the tackst-rip the tack feeding and driving devices areautomatically stopped.

The mechanism for operating the feed-wheels is provided with adetainer-pawl, O, in addition to the devices described in our saidLetters Patent, for the purpose of preventing the backward movement oft-he ratchet-wheel operated by the feed-pawl o upon its backwardmovement. v

VIn case it is necessary to inspect or remove any part of the tack-stripfeeding or severing mechanism, the table D, supporting it, may belowered upon the bracket d4, thereby eX- posing the same in a desirableway to the opera tor.

Having thus fully described our invention, we claim and desire to secureby Letters Patent of the United Statesk1. In a machine for settingtacks, the combination of the auxiliary cham ber a, hopper A, and one ormore revolving buckets, a2, adapted to lil't the tacks in the hopper andto deposit them upon the chute, with said chute and a wiper, allarranged to operate as described.

2. In a machine for setting tacks, the combination of the ch nte,arranged within the hopper as described, and a spiral wiper, a9, adaptedto clear the tacks from the chute, substantially as and for the purposesdescribed.

3. As a means tor preventing tacks from clogging in the inclined chute,a wiping or clearing device consisting' of the revolving spiralprojection a9, substantially as and for the purposes described.

4. ln a tack-setting machine, the combination ot' the platform c?,attached tothe chute. c7, with a hammer, a, operated to strike theplatform at intervals to jar the same, substantially as and for thepurposes described.

5. The combination, in a tack-setting machine, of the hopper A, one ormore revolving buckets or scoops, a2, for lifting the tacks and TOO IIO

depositing them upon the inclined platform a, the chtite ai, and theWiper or clearing device a9, all arranged to operate substantially asand for the purposes described.

6. The combination of an inclined tack-carrying chute With areciprocating tack-carrying plate, B, having a T-shaped tack-receivingrecess adapted to receive a tack from the chute and to transfer it to aposition from Whenceit is advanced to the driveway, substantially as andfor the purposes described.

7. The combination of an inclined tack-carrying chtite, a reciprocatingplate, B, having a T-shaped tack-receiving recess, and areciprocatingtransferring-plate, c', adapted to remove the tack from thetack-supporting recess in the plate B and to transfer it to thedriveway, substantially as and for the purposes described.

8. Thecombination ofthereciprocatingtackcarrying plate B, having aT-shaped tack-receivin g recess, with the reciprocatingtransferring-plate c', all adapted for use substantially as and for thepurposes described.

9. Thecombination of thereciprocatin g tackcarrying plate B, providedwith a T-shaped tackearrying recess, b, with means, substantially asdescribed, for removing the tacks at stated intervals from the recess,and for inserting them in a strip or holder, substantially as and forthe purposes described.

10. The combination of the tack-supporting plate B,providedwithaT-shaped tack-receiving recess, b, the transferring-plate c', forremoving the tack from said recess and to transfer it to the driveway,and the jaws e8, for holding the tack in the driveway until the descentot the driver, substantially as and for the purposes described.

1l. The combination of the reciprocating tack-carrying plateB,l1avingaT-sl1aped tackreceiving recess, b, the reciprocating transferrer c', the driveway, and means for supporting the tack therein, withthe driver G, substantially as and for the purposes described.

12. rlhe combination of the inclined tackcarrying chute al, thedriveway, and means for supportingthe tack therein,and the driver t),and intermediary tack separating and transferring mechanism, consistingof the reciprocating tacksupporting plate B, having a T- shapedtack-carrying recess, l), and the reciprocating transferring-plate c',all adapted to operate substantially as and for the purposes described.

13. The combination of the driver C, yieldingly held to itsoperating-rod, with the block f', connecting devices, the latch f2, thecatch f3, and the rod F and its spring, all arranged so that upon thesliding of the driver in its support the rod F will be automaticallyretracted, substantially as and for the purposes described.

14. The combination, with the tack feeding and setting mechanism, of thetable or bed I), for supporting the tack-stri p feedin gand othermechanism, the plate D', adapted to slide upon the bracket d4, andthecam-block d6, all adapted to operate substantially as described.

15. The combination of the tack-carrying plate B, and the link or rodb3, with the leverB, the cam-groove b, and the spring B2, substantiallyas and for the purposes described.

16. Asa means for varying the extent of the outward horizontal movementof the tack-receiving plate B, the lower arm, g, ot' the lever B', andthe adjusting-screw g upon the arm b3, substantially as and for thepurposes described.

17. As a means for varyingthe extent of the inward movement of thetack-supporting plate B. the adjustable screw-stop g3 and the spring B2,substantially as and for the purposes described.

18. The combination ofthetransferring-plate c, the lever c4, and thecam-groove c6, for delivering the tack to the action of the driver,substantially as described.

19. rIhe combination of the lever d, pro vided with the slot d10, withthe operating-lever d, carrying at its end the bar (115, adapted toenter the slot d10, for feeding the tack strip, substantially asdescribed.

20. The combination ofthe tack-strip-feeding mechanism with aseveringdevice adapted to cut the tack-strip automatically at fixed timesintouniform lengths, substantially as and for the purposes described.

2l. The combination of the reciprocating pawl c, the carrier-plate elo,the notched wheel e6, and the ratchet-wheel e8, allarranged to operatethe cams e4, substantially as and for the purposes described.

22. The combination ot' the pressure-wheel t3,theleverh7, having acam-groove, lr6, and the block h4, substantially as and forthe purposesdescribed.

23. The combination of the block 71,4, lever 71,7, and tension-screw h",substantially as and for the purposes described 24. In a machine formanufacturing tackstrips, the combination, with tack feeding andinserting mechanism and strip-feeding mechanism, of a Wheel, h3, adaptedto compress the covering-strip upon the main or holding strip after thetack has been inserted, all substantially as and for the purposes setforth.

25. The combination of the pressure-roll h3, having a bevel-gear, h',with the bevel-gear h upon the feed-Wheel df, substantially as and forthe purposes described.

26. In a machinefor the manufacture of tackstrips, the combination ofdevices for feeding scribed.

ERASTUS WOODWARD. MATTHIAS BROCK. Witnesses:

RF. RAYMoND,2d, A. J. OETTINGER.

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